Both the Meyers-Milias-Brown Act (MMBA) and PERB regulations recognize the right of an employee organization to request factfinding following a declaration of impasse.  That right, however, is not absolute: Government Code section 3505.4(a) and PERB regulation 32802(a)(1) mandate that such a request be made “not sooner than 30 days, but not more than 45 days,…